Adult degenerative deformity: principles of sagittal balance, classification and surgical management

Orthopaedics and Trauma
Volume 31, Issue 6, December 2017, Pages 370-377

George Mataliotakis Athanasios I. Tsirikos Saeed Mohammad

Abstract
Deformity has always been part of the gradual spinal degenerative process occurring in older ages causing pain and disability. The shift of the adult population towards older ages has rendered this entity a much more frequent problem requiring treatment. Restoration of global balance is important to achieve pain relief and improve health related quality of life. Advances in the understanding of the spinal balance provided insight into the goals of surgical treatment. Moreover, progress of instrumentation expanded the spectrum of possible operations. However, the altered bone biology and presence of medical co-morbidities define the surgical limitations and restrict the number of patients who are fit to undergo such major surgery. This article reviews the fundamental principles of spinal balance and clinical aspects of adult deformity. There is no doubt that surgical correction plays an important role in the management of this condition but this is not indicated for all patients. Indications for deformity correction and treatment options are discussed. Finally the complications are presented as this is an important parameter for a sound patient selection process.

From the  paper:

Conservative management
Conservative management in adult deformity patients is indicated in: (a) mild scoliosis less than 30, which rarely progresses,(b) in all symptomatic patients prior to surgical management and (c) in all patients with contraindication for surgery. This includes: (a) activity modification, (b) physiotherapy, chiropractic manipulation and exercises focused on core strengthening, (c) walking aids and braces and (d) non-narcotic medication (NSAIDS, tricyclic antidepressants etc).2,8,12 Epidural steroid injections are widely used as part of pain management in order to temporarily relieve symptoms of lumbar stenosis.2,8,12 When surgery is planned patient optimization focuses on: (a) weight reduction to BMI under 30 kg/m2, (b) smoking cessation, (c)
osteoporosis treatment, (d) nutritional supplementation and (e) full assessment of cardiopulmonary system.

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